:root{--primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;--secondary:#0f172a;--accent:#06b6d4;--chatgpt-color:#10a37f;--claude-color:#d97706;--gemini-color:#4285f4;--gray-50:#f8fafc;--gray-100:#f1f5f9;--gray-200:#e2e8f0;--gray-300:#cbd5e1;--gray-400:#94a3b8;--gray-500:#64748b;--gray-600:#475569;--gray-700:#334155;--gray-800:#1e293b;--gray-900:#0f172a;--success:#10b981;--warning:#f59e0b;--error:#ef4444;--font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--transition:all 0.3s ease;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow:0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px -1px rgba(0,0,0,.1);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px 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rgba(0,0,0,.1)}.nav{justify-content:space-between;height:72px}.logo,.nav{display:flex;align-items:center}.logo{gap:10px;font-weight:700;font-size:1.25rem}.logo,.logo:hover{color:var(--gray-900)}.logo-icon{justify-content:center;width:40px;height:40px;background:linear-gradient(135deg,var(--primary) 0,var(--primary-dark) 100%);color:#fff;font-weight:700;border-radius:var(--radius)}.logo-icon,.nav-menu{display:flex;align-items:center}.nav-menu{gap:32px}.nav-menu a{color:var(--gray-600);font-weight:500}.nav-menu a.active,.nav-menu a:hover{color:var(--primary)}.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:5px}.nav-toggle span{width:24px;height:2px;background:var(--gray-700);transition:var(--transition)}.hero{padding:160px 0 100px;background:linear-gradient(135deg,var(--gray-50) 0,#fff 100%)}.hero .container{display:grid;grid-template-columns:1fr 1fr;grid-gap:60px;gap:60px;align-items:center}.hero-content h1{margin-bottom:24px}.hero-content .highlight{color:var(--primary)}.hero-subtitle{font-size:1.25rem;color:var(--gray-600);margin-bottom:32px;max-width:500px}.hero-cta{display:flex;gap:16px;flex-wrap:wrap}.hero-visual{display:flex;justify-content:center;align-items:center}.ai-cards{display:flex;gap:20px;perspective:1000px}.ai-card{display:flex;flex-direction:column;align-items:center;gap:12px;padding:24px 32px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);transition:var(--transition);animation:float 3s ease-in-out infinite}.ai-card:nth-child(2){animation-delay:.5s}.ai-card:nth-child(3){animation-delay:1s}.ai-card:hover{transform:translateY(-10px) scale(1.05);animation-play-state:paused}.card-icon{width:60px;height:60px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:1.5rem;font-weight:700;color:#fff}.ai-card.chatgpt .card-icon{background:var(--chatgpt-color)}.ai-card.claude 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h3{color:#fff;margin-bottom:4px}.tool-company{opacity:.9;font-size:.875rem}.tool-body{padding:24px}.tool-description{color:var(--gray-600);margin-bottom:20px}.tool-body h4{font-size:.875rem;text-transform:uppercase;letter-spacing:.5px;color:var(--gray-500);margin-bottom:12px}.tool-features,.tool-limitations{margin-bottom:20px}.tool-features li,.tool-limitations li{position:relative;padding-left:24px;margin-bottom:8px;color:var(--gray-700)}.tool-features li:before{content:"\2713";position:absolute;left:0;color:var(--success);font-weight:600}.tool-limitations li:before{content:"\2022";position:absolute;left:0;color:var(--gray-400)}.topics{padding:100px 0;background:#fff}.topics-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:32px;gap:32px}.topic-card{display:block;padding:32px;background:var(--gray-50);border-radius:var(--radius-xl);border:1px solid 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